I burn a coal stove during the cold months and when the weather breaks, I switch to an oil furnace. I tried to trun it on the other day and it would run for a few seconds, then turn off. The thermostate would then read "HOLD -AC". It will do this repeatedly. Any Ideas?
I have one humidistat honeywell H8908B which presently controlls honeywell humidifiers(HE440A ). I...
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I have one humidistat honeywell H8908B which presently controlls honeywell humidifiers(HE440A ). I am adding the HM512 onto the second furnace and trying to wire into the exisiting 440a. the 440a presently controlls both furnaces and works ok. can i wire and make the HM512 a slave ? and it still has to fill up with water an shut off by itself. i want both to act as one,but having the 440A keep controll of the fans. the service tech added a seperate two pole relay and spiced into to blue wire on the 440 and one side of the humidistat conector. also he set the number 4 dip switch on. this wiring left me with a over heating 512, it was super hotn to touch on the outside of the unit eventhough the main 440A was off.please help
I am getting six blinks on the call for service light after I push the reset button.What does that...
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I am getting six blinks on the call for service light after I push the reset button.What does that mean?
Chronotherm III...Replace Battery notification blinking...replaced twice with the appropriate...
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Chronotherm III...Replace Battery notification blinking...replaced twice with the appropriate batteries, turned the correct way. Cleaned off the battery terminals and still have replace battery notification?
"replace better" msg light came on; I replaced with 3 AAA Alkalines...3 days later, same...
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"replace better" msg light came on; I replaced with 3 AAA Alkalines...3 days later, same message- replaced AAAs again, with what are absolutley fresh ones, same msg. Is there a backup batter somewhere on this unit that needs replaced? The manual does not indicate or show or mention a backup battery...stumped, 'HEP! thx, ed zeppelin the temperature guy